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-rw-r--r--target-arm/cpu.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/target-arm/cpu.c b/target-arm/cpu.c
index 6fa51f4446..7496983b42 100644
--- a/target-arm/cpu.c
+++ b/target-arm/cpu.c
@@ -454,6 +454,9 @@ static Property arm_cpu_rvbar_property =
static Property arm_cpu_has_el3_property =
DEFINE_PROP_BOOL("has_el3", ARMCPU, has_el3, true);
+static Property arm_cpu_has_mpu_property =
+ DEFINE_PROP_BOOL("has-mpu", ARMCPU, has_mpu, true);
+
static void arm_cpu_post_init(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
@@ -481,6 +484,12 @@ static void arm_cpu_post_init(Object *obj)
qdev_property_add_static(DEVICE(obj), &arm_cpu_has_el3_property,
&error_abort);
}
+
+ if (arm_feature(&cpu->env, ARM_FEATURE_MPU)) {
+ qdev_property_add_static(DEVICE(obj), &arm_cpu_has_mpu_property,
+ &error_abort);
+ }
+
}
static void arm_cpu_finalizefn(Object *obj)
@@ -567,6 +576,10 @@ static void arm_cpu_realizefn(DeviceState *dev, Error **errp)
cpu->id_aa64pfr0 &= ~0xf000;
}
+ if (!cpu->has_mpu) {
+ unset_feature(env, ARM_FEATURE_MPU);
+ }
+
register_cp_regs_for_features(cpu);
arm_cpu_register_gdb_regs_for_features(cpu);